Ricoh A229 - Built in Lct; Paper Tray Lift Mechanism; Rev.12;15;98

PAPER FEED
2-101
Detailed
Descriptions
SM A229
2.8.10 BUILT IN LCT
Paper Tray Lift Mechanism
Drive from the reversible LCT motor [A] is transmitted through a worm gear [B] to
the drive pulley shaft [C]. The tray wires [D] are secured in the slots [E] at the ends
of the tray support rods [F] and [G].
When the LCT motor turns forward and the drive pulley shaft [C] turns
counterclockwise, the tray support rods and the tray bottom plate [H] move upward.
The tray goes up until the top of the paper stack pushes up the pick-up roller, and
the 3
rd
tray lift sensor is activated.
The paper near end sensor [I] detects the paper near end condition when it is
activated by the actuator [J] on the rear end of the right support rod [G].
To lower the tray bottom plate [H], the LCT motor reverses and the drive pulley
shaft [C] turns clockwise. The tray support rods and the tray bottom plate move
downward. The tray goes down until the tray down sensor [K] is activated by the
actuator [J].
When the paper is present and the tray is up the tray paper set sensor [L] is
blocked. When paper runs out and the tray lowers it can not raise again until the
tray paper set sensor is unblocked by the addition of paper.
A229D621.WMF
[A]
[B]
[C]
[D]
[E]
[E]
[F]
[G]
[H]
[I]
[J]
[K]
[E]
[E]
[L]
Rev. 12/15/98